Bose 301 Series III- Manuals

Page 2 - PROPRIETARY INFORMATION; Table Of Contents; BOSE

PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATIONOF BOSE CORPORATION WHICH IS BEING FURNISHED ONLYFOR THE PURPOSE OF SERVICING THE IDENTIFIED BOSEPRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OROWNER OF THE BOSE PRODUCT, AND SHALL NOT BE RE-PRODUCED OR USED FOR ANY OTHER PURPOSE....

Page 3 - Series II; SPECIFICATIONS

BOSE ® 301 ® SERIES IV TECHNICAL DESCRIPTION The BOSE 301 Series IV speaker is a replacement for the 301 Series III and 4.2 ® Series II speakers. It is a passive, two-piece (mirror image stereo pair) home loudspeaker in a bookshelfconfiguration. The 301 Series IV is designed for use with standard am...

Page 4 - DISASSEMBLY/ASSEMBLY PROCEDURES; indicated in Procedure 1.; the gasket backed tweeter (4) and separate the; to the tweeter terminals as possible.

DISASSEMBLY/ASSEMBLY PROCEDURES Note: Refer to Figure 3 for the following proce-dures. 1. Grille Removal: Both the front grille (1) and the side grille (3) are held in place by a snap-fit andare easily removed by hand. To remove,CAREFULLY pull the grille away from thespeaker. 2. Woofer Removal/Repla...

Page 5 - Remounting the Grilles: Both side and front; grilles can only be mounted one way.

4 4.6 Remount the tweeter using the #8-32 screw. 4.7 Remount the woofer using the four #8-11 screws. 5. Remounting the Grilles: Both side and front grilles can only be mounted one way. 5.1 Side Grille: Align the feet with the fast-on grommets. Press in lightly until the grille feetare fully inserted...

Page 6 - TEST PROCEDURES; Woofer Rub and Tick Test: Connect the; Test Connections, 301; Tweeter Sweep Test: Reduce the amplifier

5 TEST PROCEDURES Note: Before performing any tests, remove bothgrilles by following the grille removal instructions inthe disassembly section of this manual. 1. Woofer Rub and Tick Test: Connect the output of a signal generator to the input of apower amplifier. Connect the output of thepower amplif...

Page 7 - This ensures that the woofer and speaker input; Tweeter Phase Test: Remove 4 screws and lift; Crossover Measurements; Note: Due to the inaccessibility of the tweeters,; measuring the voltage across a 10

FIGURE 2 Schematic Diagram This ensures that the woofer and speaker input terminals are wired in phase, (see SchematicDiagram, Figure 2). 6. Tweeter Phase Test: Remove 4 screws and lift the woofer carefully away from the speakercabinet in order to access the terminal cup.Check the wiring on the term...

Page 8 - Series IV Main Assembly Drawing; Detail A; Logo Variations & Placement

7 FIGURE 3: 301 ® Series IV Main Assembly Drawing 4 5 3 6 7 8 9 10 B 12 11 6 RT1 A C1 See Detail A for LogoVariations and Placement 2 1 2 Detail A Logo Variations & Placement ( Left Speaker Shown ) C2 Note: Exploded view of end caps is to show relative location of crossover components as well as...

Page 10 - Series IV Main Assembly Parts List (Figure 3); Grommet, Grille Socket

9 301 ® Series IV Main Assembly Parts List (Figure 3) I t e m Number Description Part Number Q t y . P e r Speaker Reference 1 Grille Assembly, Front: Brown/Grey or Black 181851-01181851-00 11 2 Nameplate, Logo: Large or Small 122812-0185208-01 11 3 Grille Assembly, Side: Dark Brown or Black 181856-...

Page 11 - List, Warranty Service Stations; S p e a k e r

10 301 ® Series IV Crossover Parts List (Figure 3) 301 Series IV Main Packaging Parts List (Figure 4) I t e m Number Description Part Number Q t y . P e r Carton Reference 1 Owner's Manual 181869 1 2 List, Warranty Service Stations 122766 1 3 Card, Info, Warranty, Multi Language 181460 1 4 Card, Inf...

Page 12 - SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose CorporationThe MountainFramingham, Massachusetts USA 01701 P/N 181850 7/96 REV. 1 FOR TECHNICAL ASSISTANCE AND PARTS ORDERING, CALL 800-367-4008